<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">北京</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" v-for="item of hot" :key="item.id">
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			<div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
				<div class="title border-topbottom">{{key}}</div>
					<div class="item-list">
						<div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id">{{innerItem.name}}</div>
					</div>
			</div>
		</div>
	</div>
</template>

<script>
import BScroll from 'better-scroll'
export default{
	name:'CityList',
	props:{
		hot:Array,
		cities:Object,
		letter:String
	},
	mounted(){
		this.scroll=new BScroll(this.$refs.wrapper)
	},
	watch:{
		letter(){
			if(this.letter){
				const element=this.$refs[this.letter][0]
				this.scroll.scrollToElement(element)
			}
		}
	}
	
}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.border-topbottom
	&:before
		border-color:#ccc
	&:after
		border-color:#ccc
.border-bottom
	&:before
		border-color:#ccc
.list
	overflow:hidden
	position:absolute
	top:1.58rem
	left:0
	right:0
	bottom:0
	.title
		line-height:.54rem
		background:#eee
		height:.54rem
		padding-left:.26rem
		color:#666
	.button-list
		overflow:hidden
		padding:.1rem .6rem .1rem .1rem
		.button-wrapper
			float:left
			width:33.33%
			.button
				text-align:center
				margin:.1rem
				border:.02rem solid #ccc
				padding:.1rem 0
				border-radius:.06rem
	.item-list
		.item
			line-height:.76rem
			padding-left:.26rem
</style>